/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: wwy
 * Date: 2024-08-16
 * Time: 16:13
 */
public class PrimeNumber {
    public static void main(String[] args) {
        int n = 7;
        int i = 0;
        for (i = 0; i < Math.sqrt(n); i++) {
            if (n % i == 0) {
                break;
            }
        }
        if (i > Math.sqrt(n)) {
            System.out.println("pn");
        }
    }
}
